the sum of 3 angles of a triangle is 180 degrees. The greatest angle is 5x as great as the least angle. the 3rd angle is 18 degrees less than the greatest angle. how many degrees are in each angle of the triangle?
Largest = 90
Smallest = 18
Middle angle = 72
how would you write the equation for this problem
x + 5x + 5x - 18 = 180
x = smallest angle
5x = largest angle
5x - 18 is the third angle
11x = 198
x = 18
5x = 90
5x - 18 = 72
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